Tractor tire lift



Dec. 7, 1948. M. B. MARTIN TRACTOR TIRE LIFT 2 Sheets-Sheet 1 Filed Feb. 7, 1947 v INVENTOR. MELVIN 5. MART/IV,

.BY WM nrronwavs. 3

-Dec. 7, 1948. M, MARUN 2,455,432

TRACTOR TIRELIFT Filed Feb. 7, 1947 I 2 Sheets-Sheei 2 FIG. 2.

INVENTOR. MEL W 5. MAR 771v,

ATTORNE Y8.

Patented Dec. 7, 1948 UNITED STATES PATE NT 0 FF-lpC 2,455,432 l TRACTOR TIRE LIFT Melvin BLMartin, Piqua, Ohio Application February 7, 1947, Serial No. 727,08'4- 4 Claims.-. (Cl. 2141l3) My invention relatesto tirelifts, and more par.-.

a small service truck, so that the truck can be backed up 'to' the tractor and the tractor. wheel equipped with.the tire to be serviced can be run onto-the lift, and aftervthe'. lugs. on the. tractor have :been iloosened-l can. be lifted .and taken to. a garage forservicing.

Another object ofimy: invention is to provide a tractortire'lift adapted to be removably secured todifferent makes ortrucks by means of adapters of differentxstylesr.

Other objects of my. inventionmay appearin the following specification describingit with reference to theaccompanying .drawings'illustrating a:-pref-erred= embodiment of my invention;-

Itzi's; however; to be understood. that my invention is not to lee-limited and restricted to the exact construction and combination of parts described in the specification and-shown in the drawings, but that suchchanges' and-'modi-ficatio'ns can be made which fall within thescopeof the-claims appended hereto.

In the drawings? Figure 1 is a perspective'viewof a tractor tire lift according to my invention, an adapter being shownby means of which the liftcan be 'removably hitched to a jeep;

Figure 2 is a fragmentary elevational side view of a jeep truck equipped with a tire lift according to my invention; a tractor'wheel equipped with a tirebeing shown in position'on the lift.

Referring now in detail to the drawings, the tire lift forming the subject matter of' my invention comprisesa main frameill having a bottom bar ll. At each end of the bottom bar H an eye beam [2 is secured by welding or the like, so that it'stands" upright on'one of itsv ends;

To'each of the eye beams 12 an h-shaped fase tening member [3 .is secured by welding or the like, so that the long bar of the h abuts the corresponding beams at a distance from the top end of-the beam and that the long and the shortbars of each fastening member extend atright angles forwardly to the corresponding eye beam. (2.

Coaxialholes 14 are provided in the longand short bars of eachfasteningmember 13.

A fiatstifieningqbar i5 is secured to. the. front surfaces. ofhthetwo eye beamsv .12 at a distance above the bottom bar I l and parallel-thereto.-

A liftingframe l6 comprisestwo vertically ar ranged flat side. bars l'lwhich arei-positionednsothattheir. inner'flat surfaces face each others A lifting. bar i8 is securedto these side; bars H. by welding orthe like at the-frontedges of-theside bars so thatthelifting bar- 18 stands on ed ev and the lower edge of-this bar is arranged in the same plane with the lower end edgesof the.- side bars ll.

symmetrically fromthe vertical center line of the lifting bar I8 a plurality of holes i9 is. are. ranged for a purpose to be 'described later..-

At a bar 20 extends between and issecuredtothe -ver.- tical. sidebars H. The slide bar is arrangedso that its fiat surfaces are positioned horizontally and that it runs parallel to the lifting bar Hi. In the center of the sliding bar- 20 a hole 2| is provided.

An upperstifiening bar 22 is received by welding or the like to the upper ends of the rear edges of the side bars ll.

Just below the top end of each sidebar-11' a forwardly extending short neck bar 23. is-secured to the front edge of each sidebar 1 1 andon the front end of each neck bar '23 a G-shaped-guide member M is formed integrally therewith.

At a distance below the neck bar- 23 a second short neck bar 23 issecured to the frontedge of each side bar I! and extends :forwardly there-! from. On the front end of each second-neck bar 23 a C-shaped guide. member is formed integrally therewith.

The C-shaped guide members are adapted to engage the rearflanges of the eye beams 12 slidably.

A manually operable jack 25. is securely mounted on the bottom bar I I. of the main frame: Hi and is arranged centrally thereon.

A sheave 26 is rotatably mounted inithe bifurcated upper endl'l of the ramof the jack 25..

One end vof-arope or cable28 is firmly. secured to the bottom bar. I I ofthemain frame Ill. The cable 28 is trained over thesheave .26 wandtexe tends downwardly. through. .the .holet2l' in the slide. bar 20'. To the free end of. the; cable- 28 under the slide bar 28 a lifting ring 29 is. securely fastened, which engages a.shackle--3ll. A bolt or rivet 3| extends centrally through thelifting bar l8 and the shackle. 38 is secured to this bolt. 3i.

Two lifting arms 32' are formed fromflatbar material. Each. lifting arm..comprises a rear.- wardly extendingbase portion 33 on thefront end whereof an upwardly. extending. intermediate portion 34 is formedat: right angles to'the base portion 33-.--

distance above the lifting bar 18 alslide At the upper end of the intermediate portion 34 each lifting arm 32 is bent forwardly at right angles to the intermediate portion 34 and then rearwardly again to form an open guideway 35 adapted to receive the slide bar 28 therein, so that the lifting arms can be adjusted slidably on said bar.

An adjusting bolt 38 extends through the intermediate lifting arm portion 34 so that it can be arranged selectively in any one of the holes IS in the lifting bar [8.

In order to attach the above-described tire lift to the rear end of a truck 31 or the like, an adjuster bar 38 is provided adapted to be engaged by the h-shaped fastening members l3 so that the adjuster bar 38 is located between the long and the short bars of the fastening members 13. Holes 39 are provided in the adjuster bar 38 so that they are coaxial with the holes 14 in the short and long bar of each fastening member l3 and are adapted to be engaged by 'a pin or the like (not shown) extending through said holes.

It is to be understood that the adjuster bar 38 has to be built especially to fit certain makes of trucks. In general, however, the adjuster bar 38 is constructed so that it is adapted to be attached securely but removably to the rear of the body of a truck or the like. a

To fit the adjuster bar 38 Onto a jeep an end bar 48 is welded onto the top surface of the adjuster bar 38 adjacent each end thereof and is formed so that it extends parallel to the adjuster bar at a distance above the same.

The outer end of each end bar 48 extends beyond the end of the adjuster bar and is bent downwardly at right angles to'the main end bar portion forming a clamp plate 4| through which a clamp bolt 42 provided with a wing head extends threadedly so that these clamp bolts are adapted to engage the jeep body and secure the adjuster bar 38 removably thereon.

When the tire lift is secured to the truck 3'1, it is backed up to the tractor 43 equipped with the tire 44 to be serviced. The lifting frame I is lowered until the lift arms 32 touch the ground.

The tractor is moved so that the tire to be serviced is on top of the base lifting arm portions 33. The lugs of the tractor wheel are loosened and the lifting frame is raised supporting the tire to be serviced.

In this manner fluid-filled tires can easily be transported from the middle of a plowed field to a garage or the like to be serviced there and can just as easily be returned to the tractor after being serviced.

Since the tire lift is removable, the truck can be used for other purposes between calls for tractor tire service.

The lifting arms 32 can be adjusted relatively to each other to fit any given size of tire by removing the adjusting bolts 38, sliding the lifting arms 32 on the slide bar 28 into the desired position and securing them in this position by inserting the adjusting bolts in the selected holes I 9.

Having described my invention, I claim as new and desire to secure by Letters Patent:

1. A tire lift including a main frame and a lifting frame slidably supported by the main frame, the main frame comprising a bottom bar, a pair of eye beams secured to and extending upwardly from the ends of the bottom bar, and a stifiener bar secured to both eye beams, the lifting frame comprising C-shaped guide members slidably engaging the rear flanges of the eye beams of the main frame, two sidebars to which the C-shaped guide members are secured, a top stiffener bar secured to the top ends of the side bars, a lifting bar secured to the lower ends of the side bars and a slide bar secured to the side bars at a distance above the lifting bar, a jack securely mounted on the bottom bar of the main frame, a sheave rotatably mounted in the bifurcated upper end of the ram of the jack, a cable trained over the sheave, one end of the cable secured to the bottom bar of the main frame and the other cable end secured to the lifting bar, and a pair of angular lifting arms having open guideways formed on its upwardly extending portions adapted to engage the slide bar slidably, the rearwardly extending portions being adapted to receive and support tires thereon.

2. A tire lift including a main frame and a lifting frame slidably supported by the main frame,

the main frame comprising a bottom bar, a pair of eye beams secured to and extending upwardly from the endsof the bottom bar, and a stiffener bar secured to both eye beams, the lifting frame comprising C-shaped guide members slidably engaging the rear flanges of the eye beams of the main frame, two side bars to which the C-shaped guide members are secured, a top stiffener bar secured to the top ends of the side-bars, a lifting bar secured to the lower ends of the side bars and a slide bar secured to the side bars at a distance above the lifting bar, a jack securely mounted on the bottom bar of the main frame, a sheave rotatably mounted in the bifurcated upper end of the ram of the jack, a cable trained over the sheave, one end of the cable secured to the bottom bar of the main frame and the other cable end secured to the lifting bar, and a pair of angular lifting arms having open guideways formed on its upwardly extending portions adapted to engage the slide bar slidably, the rearwardly extending portions being adapted to receive and support tires thereon, said arms being adapted to be secured in adjusted position relative to each other by bolts adapted to extend through holes provided in the upwardly extending arm portion and to engage seletcively holes of a plurality of holes provided in the lifting bar.

3. A tire lift including a main frame and a lifting frame slidably supported by the main frame, the main frame comprising a bottom bar, a pair of eye beams secured toand extending upwardly from the ends of the bottom bar, and a stiffener bar secured to both eye beams, the lifting frame comprising C-shaped guide members slidably engaging the rear flanges of the eye beams of the main frame, an adjuster bar for supporting said main frame, and means for securing the main frame to the adjuster bar, said means comprising an h-shaped fastening member extending horizontally and forwardly from the front flange of each eye beam, each h-shaped fastening member comprising integral spaced long and short bars adapted to receive the adjuster bar .therebetween. 7

4. A tire lift including a main frame and a lifting frame slidably supported by the main frame, the main frame comprising a bottom bar, a pair of eye beams secured to and extending upwardly from the ends of the bottom bar, and a stiffener bar secured to both eye beams, the lifting frame comprising C-shaped guide members slidably engaging the rear flanges Oftheeye beams of the main frame, two sidebars to which the C-shaped guide members are secured, a top stiffener bar secured to the top ends of the side bars, a.1ift-' ing bar secured to the lower ends of the side bars and a slide bar secured to the side bars at a distance above the lifting bar, a jack securely mounted on the bottom bar of the main frame, a sheave rotatably mounted in the bifurcated upper end of the ram of the jack, a cable trained over the sheave, one end of the cable secured to the bottom bar of the main frame and the other cable end secured to the lifting bar, a pair of angular lifting arms having open guideways formed on its upwardly extending portions adapted to engage the slide bar slidably, the rear- Wardly extending portions being adapted to receive and support tires thereon, an adjuster bar for supporting said tire lift, and means for securing the main frame to the adjuster bar, said means comprising an h-shaped fastening member extending horizontally and forwardly from the front flange of each eye beam, each h-shaped fastening member comprising integral spaced long and short bars adapted to receive the adapter bar therebetween.

MELVIN B. MARTIN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,416,958 Kelley et al May 23, 1922 1,731,204 Recchia Oct. 8, 1929 1,964,119 Hendry June 26, 1934 2,110,239 Richter Mar. 8, 1938 2,210,323 Lambert Aug. 6, 1940 2,231,875 Behnke et a1. Feb. 18, 1941 2,419,813 Berchtold Apr. '29, 1947 

